I was asked by one of the Stamp Collecting magazines to write an article about collecting signed First Day, WW2 other signed covers. This was published in mid 2006 and judging by the feedback proved useful to...
A first day cover is an envelope where the postage stamps have been cancelled on their first day of issue. The first day of issue is the day on which a postage stamp or Postal/stamp card (ie PHQ) card or...